UBUNTU-CVE-2026-26963

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-26963
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26963.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-26963
Upstream
Published
2026-02-20T00:00:00Z
Modified
2026-02-23T23:27:35.214601Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.18.0 through 1.18.5 will incorrectly permit traffic from Pods on other nodes when Native Routing, WireGuard and Node Encryption are enabled. This issue has been fixed in version 1.18.6.

References

Affected packages

Ubuntu:22.04:LTS / golang-github-cilium-ebpf

Package

Name
golang-github-cilium-ebpf
Purl
pkg:deb/ubuntu/golang-github-cilium-ebpf@0.7.0-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.2.0-1
0.6.2-2
0.7.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-cilium-ebpf-dev",
            "binary_version": "0.7.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26963.json"

Ubuntu:24.04:LTS / golang-github-cilium-ebpf

Package

Name
golang-github-cilium-ebpf
Purl
pkg:deb/ubuntu/golang-github-cilium-ebpf@0.11.0-2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.9.1-1
0.11.0-1
0.11.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-cilium-ebpf-dev",
            "binary_version": "0.11.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26963.json"

Ubuntu:25.10 / golang-github-cilium-ebpf

Package

Name
golang-github-cilium-ebpf
Purl
pkg:deb/ubuntu/golang-github-cilium-ebpf@0.11.0-2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.11.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-cilium-ebpf-dev",
            "binary_version": "0.11.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26963.json"